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<body class="container">
    <h2>强调文本</h2>
    <p>
        <&nbsp;mark&nbsp;>标签：<mark>标记的重点内容</mark>
    </p>
    <p>
        <&nbsp;del&nbsp;>标签：<del>删除的文本</del>
    </p>
    <p>
        <&nbsp;s&nbsp;>标签：<s>不再准确的文本</s>
    </p>
    <p>
        <&nbsp;ins&nbsp;>标签：<ins>对文档的补充文本</ins>
    </p>
    <p>
        <&nbsp;u&nbsp;>标签：<u>添加下划线的文本</u>
    </p>
    <p>
        <&nbsp;strong&nbsp;>标签：<strong>粗体文本</strong>
    </p>
    <p>
        <&nbsp;em&nbsp;>标签：<em>斜体文本</em>
    </p>
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